[ubuntu] fingerprint reader doesn't unlock encrypted home folder on log in

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http://ubuntuforums.org – I just set up the fingerprint reader, which is pretty cool, but I have an encrypted home directory which it does not unlock when I log in, so I still have to manually enter my password. Is there a setting to fix this? Also, there's a little graphic that comes up when I'm prompted for my password/fingerprint ... it looks terrible. Is there a way to change the graphic to a simple icon (that matches the system icons) or something? (Hardware)